2024
Internal structures of the Last Glacial Period multi-phase cold-climate aeolian dunes, Moravian Sahara, Czechia
HOLUŠA, Jakub, František KUDA, Petr KOVÁŘ, Daniel NÝVLT, Barbara WORONKO et. al.Základní údaje
Originální název
Internal structures of the Last Glacial Period multi-phase cold-climate aeolian dunes, Moravian Sahara, Czechia
Autoři
HOLUŠA, Jakub (203 Česká republika, garant, domácí), František KUDA (203 Česká republika), Petr KOVÁŘ, Daniel NÝVLT (203 Česká republika, domácí) a Barbara WORONKO
Vydání
Geomorphology, Elsevier B.V. 2024, 0169-555X
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10508 Physical geography
Stát vydavatele
Nizozemské království
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 3.900 v roce 2022
Organizační jednotka
Přírodovědecká fakulta
UT WoS
001200374800001
Klíčová slova anglicky
Aeolian dunes; Atmospheric circulation changes; Central Europe; Ground-penetrating radar; Late Pleistocene
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 25. 4. 2024 11:43, Mgr. Marie Šípková, DiS.
Anotace
V originále
Aeolian dunes in the Moravian Sahara developed during at least two distinct cold periods of the Last Glacial Period (LGP). Their two-phase development was previously deduced solely from the different orientations of dune crests without knowing the dunes' internal structure. Therefore, the aim of this study is to reveal the internal structure of the multi-generational dune system, developing a relationship between these dunes and bedrock. A combination of data was obtained from boreholes and ground-penetrating radar (GPR). GPR profiles were measured in places where the boreholes were drilled to obtain high-resolution combination data. Furthermore, models of aeolian sediment thickness and ground-water level were made using a spatial interpolation method (ordinary kriging with spherical semivariogram model) to interpret the GPR results and to investigate a relationship between the bedrock and dune patterns. Internal dune structures confirm the hypothesis of multi-generational development of this dune field. In addition, the aeolian sediment distribution was influenced by the bedrock topography. Finally, this study confirms that a change in LGP atmospheric circulation over Central Europe is the main controlling factor in forming the Moravian Sahara dune field.
Návaznosti
MUNI/A/1323/2022, interní kód MU |
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MUNI/A/1393/2021, interní kód MU |
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MUNI/IGA/1517/2020, interní kód MU |
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